High speed optical components for lightwave systems

As lightwave transmission systems for comprehensive networks have deployed, optical components have been required to increase their performance functionality, to be more compact in size, to be lower cost, and to be highly reliable. Many activities for developing key optical components have been continued and we are now beginning to see cost effective solutions on 10Gb/s components and practical 40Gb/s components which are all key enablers for building such broadband lightwave systems. In this paper, we will address the state-of-the art of technologies for 10Gb/s and 40Gb/s optical components.